CN112243222A - MU-MIMO multi-terminal UE pairing method and device - Google Patents
MU-MIMO multi-terminal UE pairing method and device Download PDFInfo
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- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
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- H04W72/04—Wireless resource allocation
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- H04W—WIRELESS COMMUNICATION NETWORKS
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Abstract
The invention relates to the technical field of communication, and discloses a method and a device for pairing MU-MIMO multi-terminal UE (user equipment), which are used for solving the problems of large calculation amount, low accuracy of output results and poor scheduling performance when a paired UE group is determined in the prior art. The method comprises the following steps: the method comprises the steps of generating a current trial MU-MIMO pairing UE group based on an obtained UE set in the full bandwidth, generating the total spectrum efficiency of the current trial MU-MIMO pairing UE group based on the obtained full bandwidth average spectrum efficiency of each UE in the current trial MU-MIMO pairing UE group after pairing, and determining the current trial MU-MIMO pairing UE group as a target MU-MIMO pairing UE group in the full bandwidth when the total spectrum efficiency meets a preset condition, so that the calculation amount for determining the pairing UE group is reduced, and the accuracy of a pairing result is improved.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a method and a device for pairing MU-MIMO multi-terminal UE.
Background
With the rapid development of the technology, the communication demand of people shows explosive growth, and the requirements on the information capacity and the transmission rate of a wireless communication system are higher and higher, but currently available frequency resources are limited, and in the prior art, in order to solve the problem of how to realize faster and more accurate information transmission based on the limited frequency resources, a subband-based multi-terminal multi-Input multi-Output (MU-MIMO) multi-terminal UE pairing scheme is adopted, which is described as follows:
screening corresponding paired UE groups for each subband, and allocating corresponding Physical Resource Block (PRB) resources for each paired UE group, wherein two or more UEs in one paired UE group share the same PRB resources, thereby improving the utilization rate of frequency resources in a communication system and the cell throughput.
However, the following problems may be caused by adopting the above technical scheme:
the multiple UE pairing is carried out on each sub-band, which belongs to repetitive operation, so that the algorithm complexity is very high, and the system calculation amount is increased;
because one UE corresponds to multiple subbands, one or more repeated UEs may exist in a paired UE group of a finally output subband, even when paired UE groups of two subbands are completely the same, which may result in low reliability of a final paired UE group result of each subband, and if the final paired UE group result of each subband is used to provide service for UEs in a commercial center, a traffic hub, a cell, a university campus, or the like, a situation of low system performance stability may occur, which affects UE experience;
and when the matched UE group with the good sub-band is determined, allocating PRB resources for the matched UE group, forming constraint on a scheduling algorithm of the PRB resources, and being incapable of adaptively allocating the PRB resources for the matched UE group based on the scheduling algorithm, thereby influencing the overall scheduling performance of the system.
In view of the above, a new MU-MIMO multi-terminal UE pairing method needs to be devised to overcome the above-mentioned drawbacks.
Disclosure of Invention
The embodiment of the invention provides a method and a device for pairing MU-MIMO multi-terminal UE, which are used for solving the problems of large calculation amount, low accuracy of output result and poor scheduling performance when a UE group to be paired is determined in the prior art.
The embodiment of the invention provides the following specific technical scheme:
a MU-MIMO multi-terminal UE pairing method comprises the following steps:
generating a current trial MU-MIMO pairing UE group based on the acquired UE set under the same full bandwidth, and calculating the full bandwidth average spectrum efficiency of each UE in the current trial MU-MIMO pairing UE group after pairing;
and generating the total spectrum efficiency of the current trial MU-MIMO pairing UE group based on the obtained full-bandwidth average spectrum efficiency of each UE after pairing, and outputting the current trial MU-MIMO pairing UE group as a full-bandwidth target MU-MIMO pairing UE group when the total spectrum efficiency of the current trial MU-MIMO pairing UE group meets a preset condition.
Optionally, generating a current trial MU-MIMO pairing UE group based on the acquired UE set under the same full bandwidth includes:
determining a preset candidate pairing UE group set, wherein the candidate pairing UE group set is generated by adopting the following modes:
screening N pieces of UE from the UE set by adopting a preset screening algorithm, and determining the N pieces of UE as a candidate UE set, wherein N is a preset parameter;
matching and combining each candidate UE in the candidate UE set by adopting a preset matching rule, and adding each generated candidate matching UE group into the candidate matching UE group set;
reading one candidate paired UE group from the set of candidate paired UE groups as the currently attempted MU-MIMO paired UE group.
Optionally, calculating the full-bandwidth average spectrum efficiency of each UE in the current MU-MIMO pairing UE group after pairing includes:
determining the signal equivalent power of each UE based on the beam forming vector of each UE in the current MU-MIMO pairing UE group after pairing;
determining the beam forming gain of each UE after pairing based on the signal equivalent power and the broadcast forming signal power of each UE;
and calculating the full-bandwidth average spectrum efficiency of each UE after pairing based on the beam forming gain of each UE after pairing.
Optionally, generating the total spectrum efficiency of the current attempted MU-MIMO pairing UE group includes:
and adding the full-bandwidth average spectrum efficiency of the UE after pairing to generate the total spectrum efficiency of the current trial MU-MIMO pairing UE group.
Optionally, calculating the full-bandwidth average spectrum efficiency of each UE in the current MU-MIMO pairing UE group after pairing includes:
and calculating the full-bandwidth average spectral efficiency of each UE after pairing based on the channel correlation of each UE in the current MU-MIMO pairing UE group after pairing in the full bandwidth.
Optionally, when the total spectrum efficiency of the currently attempted MU-MIMO paired UE group meets a preset condition, outputting the currently attempted MU-MIMO paired UE group as a full-bandwidth target MU-MIMO paired UE group, including:
when the total spectrum efficiency of the current trial MU-MIMO pairing UE group simultaneously meets a preset first condition and a preset second condition, outputting the current trial MU-MIMO pairing UE group as a full-bandwidth target MU-MIMO pairing UE group, wherein the preset first condition is as follows: the total spectral efficiency of the current attempted MU-MIMO paired UE group is greatest among the total spectral efficiencies of the respective candidate paired UE groups;
the preset second condition is as follows: the difference value between the total spectrum efficiency of the current MU-MIMO pairing UE group and the sum of the full-bandwidth average spectrum efficiencies of all the UE in the current MU-MIMO pairing UE group before pairing is larger than a preset threshold value.
A resource scheduling method, which adopts a preset scheduling algorithm to allocate corresponding Physical Resource Block (PRB) resources to a target MU-MIMO paired UE group with a full bandwidth determined based on the method of any one of claims 1 to 6, wherein each UE in the target MU-MIMO paired UE group shares the PRB resources.
An MU-MIMO multi-terminal UE pairing apparatus comprising: a processor and a memory;
wherein the processor is configured to read the program in the memory and execute:
generating a current trial MU-MIMO pairing UE group based on the acquired UE set under the same full bandwidth, and calculating the full bandwidth average spectrum efficiency of each UE in the current trial MU-MIMO pairing UE group after pairing;
and generating the total spectrum efficiency of the current trial MU-MIMO pairing UE group based on the obtained full-bandwidth average spectrum efficiency of each UE after pairing, and outputting the current trial MU-MIMO pairing UE group as a full-bandwidth target MU-MIMO pairing UE group when the total spectrum efficiency of the current trial MU-MIMO pairing UE group meets a preset condition.
Optionally, based on the obtained UE set under the same full bandwidth, a current trial MU-MIMO pairing UE group is generated, and the processor is configured to:
determining a preset candidate pairing UE group set, wherein the candidate pairing UE group set is generated by adopting the following modes:
screening N pieces of UE from the UE set by adopting a preset screening algorithm, and determining the N pieces of UE as a candidate UE set, wherein N is a preset parameter;
matching and combining each candidate UE in the candidate UE set by adopting a preset matching rule, and adding each generated candidate matching UE group into the candidate matching UE group set;
reading one candidate paired UE group from the set of candidate paired UE groups as the currently attempted MU-MIMO paired UE group.
Optionally, the processor is configured to calculate a full-bandwidth average spectral efficiency of each UE in the current MU-MIMO pairing UE group after pairing, and:
determining the signal equivalent power of each UE based on the beam forming vector of each UE in the current MU-MIMO pairing UE group after pairing;
determining the beam forming gain of each UE after pairing based on the signal equivalent power and the broadcast forming signal power of each UE;
and calculating the full-bandwidth average spectrum efficiency of each UE after pairing based on the beamforming gain after each pairing.
Optionally, generating a total spectral efficiency of the group of currently attempted MU-MIMO paired UEs, wherein the processor is configured to:
and adding the full-bandwidth average spectrum efficiency of the UE after pairing to generate the total spectrum efficiency of the current trial MU-MIMO pairing UE group.
Optionally, the processor is configured to calculate a full-bandwidth average spectral efficiency of each UE in the current MU-MIMO pairing UE group after pairing, and:
and calculating the full-bandwidth average spectral efficiency of each UE after pairing based on the channel correlation of each UE in the current MU-MIMO pairing UE group after pairing in the full bandwidth.
Optionally, when the total spectrum efficiency of the currently attempted MU-MIMO paired UE group meets a preset condition, the currently attempted MU-MIMO paired UE group is output as a full-bandwidth target MU-MIMO paired UE group, and the processor is configured to:
when the total spectrum efficiency of the current trial MU-MIMO pairing UE group simultaneously meets a preset first condition and a preset second condition, outputting the current trial MU-MIMO pairing UE group as a full-bandwidth target MU-MIMO pairing UE group, wherein the preset first condition is as follows: the total spectral efficiency of the current attempted MU-MIMO paired UE group is greatest among the total spectral efficiencies of the respective candidate paired UE groups;
the preset second condition is as follows: the difference value between the total spectrum efficiency of the current MU-MIMO pairing UE group and the sum of the full-bandwidth average spectrum efficiencies of all the UE in the current MU-MIMO pairing UE group before pairing is larger than a preset threshold value.
A resource scheduling apparatus, comprising: a processor and a memory;
wherein the processor is configured to read the program in the memory and execute:
allocating, by using a preset scheduling algorithm, a corresponding physical resource block, PRB, resource for a target MU-MIMO paired UE group of a full bandwidth determined based on the method of any one of claims 1 to 6, where each UE in the target MU-MIMO paired UE group shares the PRB resource.
An MU-MIMO multi-terminal UE pairing apparatus, comprising:
the determining unit is used for generating a current trial MU-MIMO pairing UE group based on the acquired UE set under the same full bandwidth, and calculating the full bandwidth average spectrum efficiency of each UE in the current trial MU-MIMO pairing UE group after pairing;
and the processing unit is used for generating the total spectral efficiency of the current trial MU-MIMO pairing UE group based on the obtained full-bandwidth average spectral efficiency of each UE after pairing, and outputting the current trial MU-MIMO pairing UE group as a full-bandwidth target MU-MIMO pairing UE group when determining that the total spectral efficiency meets a preset condition.
A resource scheduling apparatus, comprising:
a scheduling unit, configured to allocate, by using a preset scheduling algorithm, corresponding physical resource block PRB resources for a target MU-MIMO paired UE group with a full bandwidth determined by the method according to any one of claims 1 to 6, where each UE in the target MU-MIMO paired UE group shares the PRB resources.
A communication device having a computer program stored thereon for reading the computer program to perform the steps of any of the MU-MIMO multi-terminal UE pairing methods or the steps of the resource scheduling methods described above.
A computer-readable medium having stored thereon a computer program for execution by a processor of the steps of any of the MU-MIMO multi-terminal UE pairing methods or the steps of the resource scheduling methods described above.
The invention has the following beneficial effects:
in the embodiment of the invention, the current trial MU-MIMO pairing UE group is generated based on the acquired UE set in the full bandwidth, the total spectrum efficiency of the current trial MU-MIMO pairing UE group is generated based on the obtained full bandwidth average spectrum efficiency of each UE in the current trial MU-MIMO pairing UE group after pairing, and when the total spectrum efficiency meets the preset condition, the current trial MU-MIMO pairing UE group is determined as the target MU-MIMO pairing UE group in the full bandwidth, so that the calculation amount for determining the pairing UE group is reduced, and the accuracy of the pairing result is improved.
Drawings
Fig. 1 is a schematic flowchart of a full-bandwidth-based MU-MIMO multi-UE pairing method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a MU-MIMO multi-terminal UE pairing apparatus according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a resource scheduling device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an MU-MIMO multi-terminal UE pairing apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a resource scheduling apparatus according to an embodiment of the present invention.
Detailed Description
In order to solve the problems of large calculation amount, low accuracy of an output final pairing UE group and poor scheduling performance in MU-MIMO multi-UE pairing with a sub-band as granularity in the prior art, in the embodiment of the invention, MU-MIMO multi-UE pairing is performed with full bandwidth as granularity to generate a current trial MU-MIMO pairing UE group, the total spectrum efficiency of the current trial MU-MIMO pairing UE group is generated based on the obtained full bandwidth average spectrum efficiency of each UE in the current trial MU-MIMO pairing UE group after pairing, and when the total spectrum efficiency meets the preset condition, the current trial MU-MIMO pairing UE group is determined as a full bandwidth target MU-MIMO pairing UE group.
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In the embodiment of the present invention, as shown in fig. 1, the process of performing MU-MIMO multi-UE pairing with full bandwidth as granularity is as follows:
s101, generating a candidate UE set based on the acquired UE set under the same full bandwidth.
And screening N pieces of UE from the UE set under the full bandwidth by adopting a preset screening algorithm, and determining the N pieces of UE as a candidate UE set, wherein N is a preset parameter.
S102, matching and combining each candidate UE in the candidate UE set by adopting a preset matching rule, and adding each generated candidate matching UE group into the candidate matching UE group set.
Specifically, all candidate paired UE groups may be generated by an exhaustive method, and each candidate paired UE group may also be generated by an existing greedy algorithm.
For example, there are 3 candidate UEs (U1, U2, U3) in the candidate UE set, and the generated candidate paired UE groups are [ U1, U2], [ U1, U3], [ U2, U3], [ U1, U2, U3 ]. S103, reading one candidate pairing UE group from the candidate pairing UE group set as a current trial MU-MIMO pairing UE group.
And S104, calculating the full-bandwidth average spectrum efficiency of each UE in the current MU-MIMO pairing UE group after pairing.
In the embodiment of the present invention, the method for calculating the full bandwidth average spectrum efficiency of each UE after pairing includes, but is not limited to, the following two calculation methods:
the first calculation method is as follows:
firstly, calculating a beamforming vector of each UE in a current MU-MIMO pairing UE group before pairing, and then correcting the beamforming vector of each UE in the current MU-MIMO pairing UE group before pairing based on an interference suppression matrix to generate a beamforming vector of each UE in the current MU-MIMO pairing UE group after pairing;
secondly, calculating the signal equivalent power of each UE based on the beam forming vector after each UE in the current trial MU-MIMO pairing UE group is paired;
thirdly, based on the signal equivalent power and the broadcast forming signal power of each UE, determining the beam forming gain of each UE after pairing;
and finally, calculating the full-bandwidth average spectrum efficiency of each UE after pairing based on the beam forming gain of each UE after pairing.
The second calculation method is as follows:
and calculating the full-bandwidth average spectrum efficiency of each UE after pairing based on the channel correlation of each UE in the current MU-MIMO pairing UE group after pairing in the full bandwidth.
And S105, generating the total spectrum efficiency of the current trial MU-MIMO pairing UE group based on the obtained full-bandwidth average spectrum efficiency of each UE after pairing.
Specifically, the full-bandwidth average spectrum efficiency of each UE after pairing is added to generate the total spectrum efficiency of the current MU-MIMO pairing UE group.
S106, judging whether the total spectrum efficiency of the current MU-MIMO pairing UE group is in accordance with a preset condition, if so, executing step 107; otherwise, step 103 is performed.
The total spectrum efficiency of the current MU-MIMO pairing UE group needs to meet a preset first condition and a preset second condition at the same time, wherein the preset first condition is as follows: the total spectral efficiency of the current attempted MU-MIMO paired UE group is the greatest among the total spectral efficiencies of the respective candidate paired UE groups.
Specifically, the total spectrum efficiency of the current trial MU-MIMO pairing UE group is compared with the total spectrum efficiency of each candidate pairing UE group to obtain a comparison result, and based on the comparison result, it is determined that the total spectrum efficiency of the current trial MU-MIMO pairing UE group is greater than the total spectrum efficiency of all candidate pairing UE groups.
For example, the total spectrum efficiency of the current MU-MIMO pairing UE group is 55Mbps, the total spectrum efficiency of the candidate pairing UE group 1 is 45Mbps, the total spectrum efficiency of the candidate pairing UE group 2 is 30Mbps, and the total spectrum efficiency of the candidate pairing UE group 3 is 25Mbps, and as can be seen from comparison, the total spectrum efficiency of the current MU-MIMO pairing UE group is the maximum.
The preset second condition is as follows: and subtracting the total spectrum efficiency of the current MU-MIMO pairing UE group with the sum of the full-bandwidth average spectrum efficiency of each UE in the current MU-MIMO pairing UE group before pairing, and judging that the difference is larger than a preset threshold value.
For example, the preset threshold is 5Mbps, the total spectrum efficiency of the currently attempted MU-MIMO pairing UE group is 55Mbps, the sum of the full-bandwidth average spectrum efficiencies of the UEs in the currently attempted MU-MIMO pairing UE group before pairing is 45Mbps, the difference between the two is 10Mbps, and after comparison, the difference of 10Mbps is greater than the preset threshold of 5 Mbps.
And S107, outputting the current attempted MU-MIMO pairing UE group as a target MU-MIMO pairing UE group with full bandwidth.
Further, after obtaining the target MU-MIMO paired UE group with the full bandwidth based on the above embodiment, further, corresponding PRB resources may be allocated for the target MU-MIMO paired UE group with the full bandwidth.
And each UE in the target MU-MIMO pairing UE group shares the PRB resource.
For example, the full bandwidth includes 10 sub-bands, each sub-band includes 4 PRB resources, so that the total 40 PRB resources in the full bandwidth is provided, and the final target MU-MIMO paired UE group with the full bandwidth is [ U1, U2, U4, U8], and the scheduling algorithm allocates 24 PRB resources to the target MU-MIMO paired UE group, and each UE in the target MU-MIMO paired UE group can call 24 PRB resources for a communication service.
Based on the foregoing embodiments, referring to fig. 2, an embodiment of the present invention provides a MU-MIMO multi-terminal UE pairing apparatus, which at least includes a processor 202 and a memory 201, wherein,
the processor 202 is configured to read the program in the memory 201 and execute:
generating a current trial MU-MIMO pairing UE group based on the acquired UE set under the same full bandwidth, and calculating the full bandwidth average spectrum efficiency of each UE in the current trial MU-MIMO pairing UE group after pairing;
and generating the total spectrum efficiency of the current trial MU-MIMO pairing UE group based on the obtained full-bandwidth average spectrum efficiency of each UE after pairing, and outputting the current trial MU-MIMO pairing UE group as a full-bandwidth target MU-MIMO pairing UE group when the total spectrum efficiency of the current trial MU-MIMO pairing UE group meets a preset condition.
Optionally, based on the obtained UE set under the same full bandwidth, a current trial MU-MIMO pairing UE group is generated, and the processor 202 is configured to:
determining a preset candidate pairing UE group set, wherein the candidate pairing UE group set is generated by adopting the following modes:
screening N pieces of UE from the UE set by adopting a preset screening algorithm, and determining the N pieces of UE as a candidate UE set, wherein N is a preset parameter;
matching and combining each candidate UE in the candidate UE set by adopting a preset matching rule, and adding each generated candidate matching UE group into the candidate matching UE group set;
reading one candidate paired UE group from the set of candidate paired UE groups as the currently attempted MU-MIMO paired UE group.
Optionally, the processor 202 is configured to calculate a full-bandwidth average spectral efficiency of each UE in the current MU-MIMO pairing UE group after pairing, and:
determining the signal equivalent power of each UE based on the beam forming vector of each UE in the current MU-MIMO pairing UE group after pairing;
determining the beam forming gain of each UE after pairing based on the signal equivalent power and the broadcast forming signal power of each UE;
and calculating the full-bandwidth average spectrum efficiency of each UE after pairing based on the beamforming gain after each pairing.
Optionally, generating a total spectral efficiency of the group of currently attempted MU-MIMO paired UEs, the processor 202 is configured to:
and adding the full-bandwidth average spectrum efficiency of the UE after pairing to generate the total spectrum efficiency of the current trial MU-MIMO pairing UE group.
Optionally, the processor 202 is configured to calculate a full-bandwidth average spectral efficiency of each UE in the current MU-MIMO pairing UE group after pairing, and:
and calculating the full-bandwidth average spectral efficiency of each UE after pairing based on the channel correlation of each UE in the current MU-MIMO pairing UE group after pairing in the full bandwidth.
Optionally, when the total spectrum efficiency of the currently attempted MU-MIMO paired UE group meets a preset condition, the processor 202 is configured to output the currently attempted MU-MIMO paired UE group as a full-bandwidth target MU-MIMO paired UE group, and:
when the total spectrum efficiency of the current trial MU-MIMO pairing UE group simultaneously meets a preset first condition and a preset second condition, outputting the current trial MU-MIMO pairing UE group as a full-bandwidth target MU-MIMO pairing UE group, wherein the preset first condition is as follows: the total spectral efficiency of the current attempted MU-MIMO paired UE group is greatest among the total spectral efficiencies of the respective candidate paired UE groups;
the preset second condition is as follows: the difference value between the total spectrum efficiency of the current MU-MIMO pairing UE group and the sum of the full-bandwidth average spectrum efficiencies of all the UE in the current MU-MIMO pairing UE group before pairing is larger than a preset threshold value.
Based on the foregoing embodiments, referring to fig. 3, in an embodiment of the present invention, a resource scheduling apparatus is provided, which at least includes: a processor 302 and a memory 301;
the processor 302 is configured to read the program in the memory 301 and execute:
and distributing corresponding Physical Resource Block (PRB) resources for a target MU-MIMO pairing UE group with a full bandwidth determined based on an MU-MIMO multi-terminal UE pairing method by adopting a preset scheduling algorithm, wherein each UE in the target MU-MIMO pairing UE group shares the PRB resources.
Based on the foregoing embodiments, referring to fig. 4, an embodiment of the present invention provides an MU-MIMO multi-terminal UE pairing apparatus, which at least includes a determining unit 401 and a processing unit 402:
a determining unit 401, configured to generate a current attempted MU-MIMO paired UE group based on the obtained UE set in the same full bandwidth, and calculate a full bandwidth average spectrum efficiency of each UE in the current attempted MU-MIMO paired UE group after pairing;
a processing unit 402, configured to generate a total spectral efficiency of the currently attempted MU-MIMO pairing UE group based on the obtained full-bandwidth average spectral efficiency of each UE after pairing, and output the currently attempted MU-MIMO pairing UE group as a target MU-MIMO pairing UE group with a full bandwidth when determining that the total spectral efficiency meets a preset condition.
Based on the foregoing embodiments, referring to fig. 5, an embodiment of the present invention provides a resource scheduling apparatus, which at least includes a scheduling unit 501:
the scheduling unit 501 is configured to allocate, by using a preset scheduling algorithm, corresponding physical resource block PRB resources for a target MU-MIMO paired UE group with a full bandwidth determined based on a MU-MIMO multi-terminal UE pairing method, where each UE in the target MU-MIMO paired UE group shares the PRB resources.
Based on the foregoing embodiments, in an embodiment of the present invention, a communication device is provided, where a computer program is stored thereon, and the communication device is configured to read the computer program, execute the steps of generating a current MU-MIMO pairing UE group based on an acquired UE set that is under the same full bandwidth, and calculate a full bandwidth average spectrum efficiency of each UE in the current MU-MIMO pairing UE group after pairing;
generating the total spectrum efficiency of the current trial MU-MIMO pairing UE group based on the obtained full-bandwidth average spectrum efficiency of each UE after pairing, and outputting the current trial MU-MIMO pairing UE group as a full-bandwidth target MU-MIMO pairing UE group when the total spectrum efficiency of the current trial MU-MIMO pairing UE group meets the preset condition;
or distributing corresponding Physical Resource Block (PRB) resources for a target MU-MIMO pairing UE group with a full bandwidth determined based on the MU-MIMO multi-terminal UE pairing method by adopting a preset scheduling algorithm, wherein each UE in the target MU-MIMO pairing UE group shares the PRB resources.
Based on the foregoing embodiments, in the embodiments of the present invention, a storage medium is provided, where a computer program is stored, and when the program is executed by a processor, the program implements generating a current MU-MIMO pairing UE group based on an acquired UE set in the same full bandwidth, and calculating a full bandwidth average spectrum efficiency of each UE in the current MU-MIMO pairing UE group after pairing;
generating the total spectrum efficiency of the current trial MU-MIMO pairing UE group based on the obtained full-bandwidth average spectrum efficiency of each UE after pairing, and outputting the current trial MU-MIMO pairing UE group as a full-bandwidth target MU-MIMO pairing UE group when the total spectrum efficiency of the current trial MU-MIMO pairing UE group meets the preset condition;
or distributing corresponding Physical Resource Block (PRB) resources for a target MU-MIMO pairing UE group with a full bandwidth determined based on the MU-MIMO multi-terminal UE pairing method by adopting a preset scheduling algorithm, wherein each UE in the target MU-MIMO pairing UE group shares the PRB resources.
In summary, in the embodiments of the present invention, a current MU-MIMO pairing UE group is generated based on an obtained UE set in a full bandwidth, a total spectrum efficiency of the current MU-MIMO pairing UE group is generated based on an obtained full bandwidth average spectrum efficiency of each UE in the current MU-MIMO pairing UE group after pairing, and when the total spectrum efficiency meets a preset condition, the current MU-MIMO pairing UE group is determined as a target MU-MIMO pairing UE group in the full bandwidth.
The method comprises the steps that a plurality of sub-bands are contained under the full bandwidth, and compared with the prior art that a target MU-MIMO pairing UE group of each sub-band is determined, the target MU-MIMO pairing UE group of the full bandwidth is determined according to the full bandwidth, and the calculation amount is small; each UE can correspond to a plurality of sub-bands, so that one or more repeated UEs may exist in a matched UE group of a sub-band which is finally output, even the matched UE groups of two or more sub-bands are completely the same, although the accuracy of a result which can be finally output is low due to the fine granularity of the MU-MIMO multi-terminal UE matching method based on the sub-bands, the coarse granularity of the MU-MIMO multi-terminal UE matching method based on the full bandwidth reduces the situation of repeated UEs which exist in a target MU-MIMO matched UE group which is finally output, and therefore, the accuracy of the matching result which is finally output is higher in the embodiment of the invention; in the prior art, when a UE group to be paired with a good subband is determined, PRB resources are allocated for the UE group to be paired with the subband, so that performance of a scheduling algorithm is restricted, and each UE in the UE group to be paired with the subband is allocated to at most all PRB resources in the subband.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (18)
1. A MU-MIMO multi-terminal UE pairing method is characterized by comprising the following steps:
generating a current trial MU-MIMO pairing UE group based on the acquired UE set under the same full bandwidth, and calculating the full bandwidth average spectrum efficiency of each UE in the current trial MU-MIMO pairing UE group after pairing;
and generating the total spectrum efficiency of the current trial MU-MIMO pairing UE group based on the obtained full-bandwidth average spectrum efficiency of each UE after pairing, and outputting the current trial MU-MIMO pairing UE group as a full-bandwidth target MU-MIMO pairing UE group when the total spectrum efficiency of the current trial MU-MIMO pairing UE group meets a preset condition.
2. The method of claim 1, wherein generating a current attempted MU-MIMO pairing UE group based on an acquired set of UEs at a same full bandwidth comprises:
determining a preset candidate pairing UE group set, wherein the candidate pairing UE group set is generated by adopting the following modes:
screening N pieces of UE from the UE set by adopting a preset screening algorithm, and determining the N pieces of UE as a candidate UE set, wherein N is a preset parameter;
matching and combining each candidate UE in the candidate UE set by adopting a preset matching rule, and adding each generated candidate matching UE group into the candidate matching UE group set;
reading one candidate paired UE group from the set of candidate paired UE groups as the currently attempted MU-MIMO paired UE group.
3. The method of claim 1, wherein calculating a full bandwidth average spectral efficiency of individual UEs in the currently attempted MU-MIMO paired UE group after pairing comprises:
determining the signal equivalent power of each UE based on the beam forming vector of each UE in the current MU-MIMO pairing UE group after pairing;
determining the beam forming gain of each UE after pairing based on the signal equivalent power and the broadcast forming signal power of each UE;
and calculating the full-bandwidth average spectrum efficiency of each UE after pairing based on the beam forming gain of each UE after pairing.
4. The method of claim 3, wherein generating the total spectral efficiency for the current attempted MU-MIMO pairing UE group comprises:
and adding the full-bandwidth average spectrum efficiency of the UE after pairing to generate the total spectrum efficiency of the current trial MU-MIMO pairing UE group.
5. The method of claim 1, wherein calculating a full bandwidth average spectral efficiency of individual UEs in the currently attempted MU-MIMO paired UE group after pairing comprises:
and calculating the full-bandwidth average spectral efficiency of each UE after pairing based on the channel correlation of each UE in the current MU-MIMO pairing UE group after pairing in the full bandwidth.
6. The method of any one of claims 1-5, wherein outputting the currently attempted MU-MIMO paired UE group as a full bandwidth target MU-MIMO paired UE group when a total spectral efficiency of the currently attempted MU-MIMO paired UE group meets a preset condition comprises:
when the total spectrum efficiency of the current trial MU-MIMO pairing UE group simultaneously meets a preset first condition and a preset second condition, outputting the current trial MU-MIMO pairing UE group as a full-bandwidth target MU-MIMO pairing UE group, wherein the preset first condition is as follows: the total spectral efficiency of the current attempted MU-MIMO paired UE group is greatest among the total spectral efficiencies of the respective candidate paired UE groups;
the preset second condition is as follows: the difference value between the total spectrum efficiency of the current MU-MIMO pairing UE group and the sum of the full-bandwidth average spectrum efficiencies of all the UE in the current MU-MIMO pairing UE group before pairing is larger than a preset threshold value.
7. A resource scheduling method is characterized in that a preset scheduling algorithm is adopted to allocate corresponding Physical Resource Block (PRB) resources to a target MU-MIMO paired UE group with a full bandwidth determined based on the method of any one of claims 1 to 6, wherein each UE in the target MU-MIMO paired UE group shares the PRB resources.
8. An MU-MIMO multi-terminal UE pairing apparatus, comprising: a processor and a memory;
wherein the processor is configured to read the program in the memory and execute:
generating a current trial MU-MIMO pairing UE group based on the acquired UE set under the same full bandwidth, and calculating the full bandwidth average spectrum efficiency of each UE in the current trial MU-MIMO pairing UE group after pairing;
and generating the total spectrum efficiency of the current trial MU-MIMO pairing UE group based on the obtained full-bandwidth average spectrum efficiency of each UE after pairing, and outputting the current trial MU-MIMO pairing UE group as a full-bandwidth target MU-MIMO pairing UE group when the total spectrum efficiency of the current trial MU-MIMO pairing UE group meets a preset condition.
9. The apparatus of claim 8, wherein a current attempted MU-MIMO pairing UE group is generated based on an acquired set of UEs at a same full bandwidth, the processor is configured to:
determining a preset candidate pairing UE group set, wherein the candidate pairing UE group set is generated by adopting the following modes:
screening N pieces of UE from the UE set by adopting a preset screening algorithm, and determining the N pieces of UE as a candidate UE set, wherein N is a preset parameter;
matching and combining each candidate UE in the candidate UE set by adopting a preset matching rule, and adding each generated candidate matching UE group into the candidate matching UE group set;
reading one candidate paired UE group from the set of candidate paired UE groups as the currently attempted MU-MIMO paired UE group.
10. The apparatus of claim 8, wherein the processor is configured to calculate a full bandwidth average spectral efficiency of individual UEs in the group of currently attempted MU-MIMO paired UEs after pairing, the processor configured to:
determining the signal equivalent power of each UE based on the beam forming vector of each UE in the current MU-MIMO pairing UE group after pairing;
determining the beam forming gain of each UE after pairing based on the signal equivalent power and the broadcast forming signal power of each UE;
and calculating the full-bandwidth average spectrum efficiency of each UE after pairing based on the beamforming gain after each pairing.
11. The apparatus of claim 10, wherein to generate a total spectral efficiency for the group of currently-attempted MU-MIMO-pairing UEs, the processor is to:
and adding the full-bandwidth average spectrum efficiency of the UE after pairing to generate the total spectrum efficiency of the current trial MU-MIMO pairing UE group.
12. The apparatus of claim 8, wherein the processor is configured to calculate a full bandwidth average spectral efficiency of individual UEs in the group of currently attempted MU-MIMO paired UEs after pairing, the processor configured to:
and calculating the full-bandwidth average spectral efficiency of each UE after pairing based on the channel correlation of each UE in the current MU-MIMO pairing UE group after pairing in the full bandwidth.
13. The apparatus of any one of claims 8-12, wherein the currently attempted MU-MIMO pairing UE group is output as a full bandwidth target MU-MIMO pairing UE group when a total spectral efficiency of the currently attempted MU-MIMO pairing UE group meets a preset condition, the processor is configured to:
when the total spectrum efficiency of the current trial MU-MIMO pairing UE group simultaneously meets a preset first condition and a preset second condition, outputting the current trial MU-MIMO pairing UE group as a target MU-MIMO pairing UE group with full bandwidth,
wherein the content of the first and second substances,
the preset first condition is as follows: the total spectral efficiency of the current attempted MU-MIMO paired UE group is greatest among the total spectral efficiencies of the respective candidate paired UE groups;
the preset second condition is as follows: the difference value between the total spectrum efficiency of the current MU-MIMO pairing UE group and the sum of the full-bandwidth average spectrum efficiencies of all the UE in the current MU-MIMO pairing UE group before pairing is larger than a preset threshold value.
14. A resource scheduling apparatus, comprising: a processor and a memory;
wherein the processor is configured to read the program in the memory and execute:
allocating, by using a preset scheduling algorithm, a corresponding physical resource block, PRB, resource for a target MU-MIMO paired UE group of a full bandwidth determined based on the method of any one of claims 1 to 6, where each UE in the target MU-MIMO paired UE group shares the PRB resource.
15. An MU-MIMO multi-terminal UE pairing apparatus, comprising:
the determining unit is used for generating a current trial MU-MIMO pairing UE group based on the acquired UE set under the same full bandwidth, and calculating the full bandwidth average spectrum efficiency of each UE in the current trial MU-MIMO pairing UE group after pairing;
and the processing unit is used for generating the total spectral efficiency of the current trial MU-MIMO pairing UE group based on the obtained full-bandwidth average spectral efficiency of each UE after pairing, and outputting the current trial MU-MIMO pairing UE group as a full-bandwidth target MU-MIMO pairing UE group when determining that the total spectral efficiency meets a preset condition.
16. A resource scheduling apparatus, comprising:
a scheduling unit, configured to allocate, by using a preset scheduling algorithm, corresponding physical resource block PRB resources for a target MU-MIMO paired UE group with a full bandwidth determined by the method according to any one of claims 1 to 6, where each UE in the target MU-MIMO paired UE group shares the PRB resources.
17. A communication device having a computer program stored thereon, characterized in that the communication device is adapted to read the computer program and to perform the steps of the method according to any of claims 1-6 or the steps of the method according to claim 7.
18. A computer-readable medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 6 or the steps of the method according to claim 7.
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